"I know U2 go into every album like it's their last one but even more this time I wanted the people around me that I loved to know exactly how I felt. So a lot of the songs are kind of letters, letters to Ali, letters to my sons and daughters, actually our sons and daughters."
- Bono on Songs of Experience
did you know
U2 had planned to release the material for No Line On The Horizon as two extended plays, titled Daylight and Darkness, but during sessions in London in 2008 decided to compile the best songs onto one album.